Analog Devices ADXL345 3-axis accelerometer breakout board with SPI / I2C interface. 8-pin header included.
Similar to more expensive ADXL346 (also available) in slightly bigger package and higher supply voltage - but has half the standby current.
Full technical details on request.
Supply voltage : 2V to 3.6V
Resolution: 13 bit
Range : Up to +/- 16g (shock rated to 10000g)
Package: 3mm × 5mm × 1mm LGA package
Power consumption: 0.23uA / 0.1uA (measurement / standby modes)